import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import Index from '../views/Index.vue'
import User from '../views/sys/User.vue'
import Menu from '../views/sys/Menu.vue'
import Role from '../views/sys/Role.vue'
import axios from "../axios";
import store from "../store"


Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home,
    children: [
      {
        path: '/index',
        name: 'Index',
        meta:{
          title: "首页"
        },
        component: Index
      },
      {
        path: '/userCenter',
        name: 'UserCenter',
        meta:{
          title: "个人中心"
        },
        component: () => import( '../views/UserCenter.vue')
      },
      // {
      //   path: '/sys/users',
      //   name: 'SysUser',
      //   component: User
      // },
      // {
      //   path: '/sys/roles',
      //   name: 'SysRole',
      //   component: Role
      // },
      // {
      //   path: '/sys/menus',
      //   name: 'SysMenu',
      //   component: Menu
      // }
    ]
  },

  {
    path: '/login',
    name: 'Login',
    component: () => import( '../views/Login.vue')
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

router.beforeEach((to,from,next)=>{

  let hasRoute= store.state.menus.hasRoute

  let token = localStorage.getItem("token")
  if(to.path == '/login'){
    next()
  }else if (!token){
    next({path: '/login'})
  }

  if(token&&!hasRoute){
    axios.get("/sys/menu/nav",{
      headers:{
        Authorization: localStorage.getItem("token")
      }
    }).then(res=>{
      //拿到menuList
      store.commit("setMenuList",res.data.data.nav)
      //拿到用户权限
      store.commit("setPermList",res.data.data.authoritys)

      //动态绑定路由
      let newRoutes = router.options.routes

      res.data.data.nav.forEach(menu=>{
        if(menu.children){
          menu.children.forEach(e=>{
            //转成路由
            let route = menuToRoute(e)

            //把路由添加到路由管理中
            if(route){
              newRoutes[0].children.push(route)
            }
          })
        }
      })
      router.addRoutes(newRoutes)
      hasRoute=true
      store.commit("changeRouteStatus",hasRoute)
    })
  }


  next()
})

//导航转成路由
const menuToRoute = (menu) => {
  console.log("正在添加menu--》")
  console.log(menu)
  if (!menu.component) {
    return null
  }
  // 复制属性
  let route = {
    name: menu.name,
    path: menu.path,
    meta: {
      icon: menu.icon,
      title: menu.title
    }
  }
  route.component = () => import('@/views/' + menu.component +'.vue')
  return route
}

export default router
